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8989974 = 2337171399
BaseRepresentation
bin100010010010…
…110100010110
3121220201221000
4202102310112
54300134344
6520404130
7136261560
oct42226426
917821830
108989974
115090334
123016646
131b29c16
1412a0330
15bc8a69
hex892d16

8989974 has 64 divisors (see below), whose sum is σ = 24192000. Its totient is φ = 2415744.

The previous prime is 8989973. The next prime is 8989999. The reversal of 8989974 is 4799898.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 8989974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8989973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5727 + ... + 7125.

It is an arithmetic number, because the mean of its divisors is an integer number (378000).

Almost surely, 28989974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8989974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12096000).

8989974 is an abundant number, since it is smaller than the sum of its proper divisors (15202026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8989974 is a wasteful number, since it uses less digits than its factorization.

8989974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434 (or 1428 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 8989974 is about 2998.3285343671. The cubic root of 8989974 is about 207.9311131595.

The spelling of 8989974 in words is "eight million, nine hundred eighty-nine thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 7 9 14 17 18 21 27 34 42 51 54 63 102 119 126 153 189 238 306 357 378 459 714 918 1071 1399 2142 2798 3213 4197 6426 8394 9793 12591 19586 23783 25182 29379 37773 47566 58758 71349 75546 88137 142698 166481 176274 214047 264411 332962 428094 499443 528822 642141 998886 1284282 1498329 2996658 4494987 8989974